blinking brake light indicator

goshman · #1 06-01-2005, 11:37 AM

My dash brake light indicator blinks 6 fast and 1 long over and over. Anyone know what this code means?

2000CAYukon · #2 06-01-2005, 01:11 PM

It would help to know year and model (C or K, 1500/2500/3500).

//2000CAYukon

goshman · #3 06-01-2005, 10:38 PM

Quote:

Originally Posted by 2000CAYukon

It would help to know year and model (C or K, 1500/2500/3500).

//2000CAYukon

sorry its a 91 k1500

mbumgua · #4 06-01-2005, 10:46 PM

Usually indicates a antilock fault of some kind

roadrunner_70 · #5 06-02-2005, 02:51 AM

ABS codes are retrieved similar to the check engine light codes, however, finding the fault codes for them are a little more difficult. You might try Mitchell Repair Manual for your year and make. I had a fault in mine once after washing the undercarriage. Unplugging the fuse for twenty to thirty seconds, with the engine off, then plugging it back in, will determine if it's a transient code. If it isn't, it will return.

2000CAYukon · #6 06-02-2005, 01:09 PM

I have a 90 Factory Service Manual at home. I can look up the code later tonight and post the results.

//2000CAYukon

2000CAYukon · #7 06-03-2005, 02:16 AM

According to my 90 FSM, you have a code 7 which is Shorted Isolation valve or faulty ecu.

The Isolation valve is near the control module between the master cylinder and steering gear box.

I would check the electrical connections at the valve first.

//2000CAYukon

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